I've got rows in a table, and would like to drag one row onto another, such that (if certain code checks pass) the two rows are combined.  I've seen a couple of comments in my Googling that imply that such things aren't possible under jquery-ui, but wanted to make sure before I try another approach.

If it matters, I don't mind limiting the drag-n-drop to a particular column, but when I try that, I can drag a <td>, but it never gets dropped.

I've also tried dragging the <tr>, but that gives a js error.

Can this be done?

Thanks,
Dave